Improvement in horse-powers



C; E.v MACRTHY.

Horse-Power.

No. 209,699. Patenfd Nov. 5, 18781.

ATTQRNBYS.

ATENI' FFIGE- CHARLES E. MACARTHY, OF FORSYIH, GEORGIA.

IMPROVEMENT IN HORSE-POWERS.

Speciiication forming part of Letters Patent No. 209,699, dated November5, 1878; application filed October 30, 1878.

To all whom it may concern:

Be it known that I, CHARLES E. MAGARTHY, of Forsyth, in the county ofMonroe and State of Georgia, have invented a new and ImprovedHorse-Power; and I do hereby declare that the following is a full,clear, and exact descrip tion of the same, reference being had to theaccompanying drawings, forming part of this specification, in which-Figure l is a side elevation with the framework in vertical section.Fig. 2 is a top or plan view ofthe arrangement of the gearing. Fig. 3 isa similar view of a modification of the invention. Fig. 4 is a sectionaldetail, showing construction of master wheel and speed-wheel.

My invention relates to an improvement in horse-powersdesigned moreparticularly to be located beneath a gin-house for ginning cotton, butapplicable for all purposes for which a horse-power is ordinarilyemployed.

The invention is an improvement upon the type of horse-powers shown inmy previous patents, granted March 26, 1878, and July 30, 1878, in whichan endless rope belt passes around a master-wheel and transmits power tothe Speed-pulley.

The novelty of the present invention consists in the peculiararrangement of pulleys in relation to the belt and master wheel, inwhich I combine a horizontal master-wheel, a speed-wheel, (arranged in avertical plane at right angles to the masterwheel,) and atension-pulley, arranged in a vertical plane and at right angles `toboth the master-wheel and the speed-wheel, and adapted, in connectionwith one or more idler-pulleys, to distend the belt in a directionlaterally to the line of belt running from the master-wheel to thespeedwheel, as hereinafter more fully described.

In the drawings, A represents the kin g-post, arranged in bearings atthe top and bottom, and provided below with laterally-projecting leversfor the attachment of the team.

Near the top of the king-post, and beneath the gin-house, is rigidlyattached a masterwheel, B, having around its periphery a V- shapedgroove to receive a rope belt, G. This groove I prefer to make V-shaped,so that the rope may bind with a wedging action into the saine toincrease the frictional contact.

D is the speed-wheel, fixed rigidly upon a revolving shaft, E, carryinga band-pulley, for connection with the machinery to be driven. Thisspeed-wheel is arranged at right angles to the master-wheel, and in avertical plane, which is a tangent to the master-wheel.

Fis the tension-pulley, which is arranged in a sliding carriage, F1,moving in guides F2. This pulley F is strained with a constant tensionto tighten the belt by a cord, G, attached Now, in running the gearing,it will be seenV (see Fig. 2) that the belt passes from the verticalplane of the speed-pulley to the masterwheel, around which it moves in ahorizontal plane. Leaving the master-wheel, it passes at right angles tothe line of belt extending from the speed-wheel to the master-wheel, andthen passes in a vertical plane around the tensionpulley. It then turnsin a horizontal plane at the idler-pulley at right angles, and comesagain into the vertical plane of the speedwheel.

As amodication of'my invention, instead of arranging the tension-pulleyto the left and using one idler, as in Fig. 2, I may arrange saidtension-pulley to the right and employ two idlcrs, asin Fig. 3, thegeneral arrangement of the several wheels and pulleys and theiroperation in connection with the belt being the same. t

The chief advantage secured by my hereindescribed improvement is, that amuch lighter weight supplies the necessary tension for thetension-pulley, and less slackway is found to exist in the rope belt.

In constructing the master-wheel and speedwheel, I take two disks ofwood, beveled upon their peripheries in opposite directions,

and fasten them together with bolts, as in Fig. y

4, so that their beveled edges give a V-shaped groove. Now, to preventthe V shape from wearing round by the friction of the rope, whichroundness would cause the belt to slip, I set into the V-sllaped groove,at close intervals, steel wearing-surfaces a, which are arranged ushwith the V-shaped groove, and are secured by screws. This alwayspreserves the V shape for the groove in the masterwheel and speed-wheel,and hence always secures a rni and positive frictional contact betweenthe rope and the wheel.

Having thus described my invention, what I claim as new is- Thecombination, with the masterwheel and C. E. MACARTHY.

Witnesses SoLoN C. KEMoN, W. H. KIRscH.

